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Mon, 26 Oct 2026 23:34:01 -0700 (PDT) Received: from [10.218.26.96] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ae404274b2sm2238992a91.5.2026.10.26.23.33.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 26 Oct 2026 23:34:01 -0700 (PDT) Message-ID: <236471c7-cf05-4019-a590-b803fc471484@oss.qualcomm.com> Date: Tue, 27 Oct 2026 12:03:55 +0530 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/5] Add support for a TEE agnostic Inline Crypto Engine service To: Eric Biggers Cc: Bjorn Andersson , Konrad Dybcio , Abel Vesa , Kuldeep Singh , Neeraj Soni , Manivannan Sadhasivam , Sumit Garg , Selvam Sathappan Periakaruppan , Basant Kumar , linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org References: <20261021-ice-migrate-tee-svc-v1-0-b035be7aab0a@oss.qualcomm.com> <20261024185602.GF2553@quark> <20261025171903.GA2212@quark> Content-Language: en-US From: Harshal Dev Organization: Qualcomm In-Reply-To: <20261025171903.GA2212@quark> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYxMDI3MDAyNSBTYWx0ZWRfX2yWlM+/XEEiP 8ncc9FBh/YIYi3jzF396bNtSViCsNtpw7OL0/+GdVYuVdxV43xuevo6V2eTJh2ca+KeL/HVBuoN rv60YD7MvAbot6Sa5OXbTlB1mNkvIKE= X-Authority-Analysis: v=2.4 cv=ZOdCCn7b c=1 sm=1 tr=0 ts=6ae045de cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=_ITZaPDcee3h4uv5GAYA:9 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-GUID: EItmVQu4KidaBhFtJg6-sv2UYBF2CTFh X-Proofpoint-ORIG-GUID: EItmVQu4KidaBhFtJg6-sv2UYBF2CTFh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDI3MDAyNSBTYWx0ZWRfXxq+1xoxVQrDe QsOn/JQZM+cy8dpCk9YTrhlJtBvWCb0Dr0uAC5QutQ1tQy8hXQPZ+K9EchWDgnm8zErPALo+rxO QJCOrOd+N7sp2TJ4XqIBYAKbIrc1PV2uzoaE50tV/dIyBLgFKREW9W+dCt1QvQylT61vh4csUIf 9CxOLd7UZeBEYRH4mC7Ef65mK1wfB2d5QnCCWvvKzX3NA9GSr+6RT6UUHsmf8iN1IsAdlRQurUw EClLPvZewaFvUw71VV6ZGV5A7Ys0W5OxTnKaMTgJKoGzVRkAbH9vXGkyY/AN2kF+DYHO88ZZDBn 56e6jspuIIErWjVn++/Hy/1J04fX8J+jM3E47yDODgvAcjtsxi4CyK9poYK87Z3bgGLNLYwidfw X+h7mvuTJEtXrf9ZPtK2yyxRoaL2mlzjpRiBy/8Yf7rCdQx4jVaaCD4ukIuPNOwJ6fCFq9I29Bh Ivc818W4/egA2hMFzTQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-27_02,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 clxscore=1015 lowpriorityscore=0 priorityscore=1501 malwarescore=0 adultscore=0 spamscore=0 bulkscore=0 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610270025 On 25-10-2026 10:49 pm, Eric Biggers wrote: > On Sun, Oct 25, 2026 at 10:16:49PM +0530, Harshal Dev wrote: >> By moving the TEE call re-direction to a separate middleware we are ensuring >> that we only touch the 9-10 lines in the driver which depend on the TEE firmware. >> Merging this functionality in the ICE driver would substantially increases >> the total file size. > > Again, it would be simpler to handle it directly in the existing > qcom_ice module. Yes, there will then be more code in that module, but > then the new single-user middleware module wouldn't be needed. > Sure Eric, I don't have any deep preferences here. I will move the middleware to the ICE driver itself. Ack. Regards, Harshal > - Eric